<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
<script>
    var arr = [10,15,2,32,5,4,20,8,48,54,6]
    function min(arr){
        var arr2=[]
        for(var i=0;i<arr.length;i++){
            if(arr[i]<10){
                arr2[i]=arr[i]
            }
        }
        return arr2
    }
    min(arr)
    console.log( min(arr));
</script>